Blocking Diodes

Blocking Diode

The blocking diode is a helpful tool for limiting the direction energy can flow through a wire to just one direction. It uses a semiconductor P/N junction achieve this behavior. If you want to learn about the P/N junction you can study up on quantum physics or do a search on Youtube for more information. The blocking diode above is sold Here

FAQ

Q: What is the purpose of a blocking diode?

A: A blocking diode enables energy to flow one direction but not the other. i.e. – From a generator to a battery, but not from the battery back to the generator.

Watch this video example:

Q: How do I know what size diode I need to buy?

A: The size of the diode is determined by a few factors

KEY CONSIDERATIONS

The maximum rated temperature that your diode can run at

The maximum Voltage rating of the diode

The maximum operating current of the diode

The efficiency of the diode

The ability for the diode to be mounted to a heat sink or an electrical panel

COST: Because diodes get more expensive as they get bigger in size, most people try to find the cheapest diode that can run at the highest temperature and the highest current without burning up